« Home » Resource Center » Crane Glossary » crane, floor-operated - crane, semigantry

Definitions

 

crane, floor-operated

crane, remote-operated


Fig. 2  Gantry Crane

 


crane, floor-operated: a crane whose movements are controlled by an operator through the use of controllers contained in a pendant station suspended from the crane.

crane, gantry: a crane similar to an overhead crane except that the bridge for carrying the trolley or trolleys is rigidly supported on two or more legs running on fixed rails or other runway (see Fig. 2).

crane, molten-material-handling: an overhead crane used for transporting or pouring molten material.

crane, manually operated: a crane whose hoist mechanism is driven by pulling an endless chain, or whose travel mechanism is driven in the same manner or by manually moving the load or hook.

Fig. 3  Cantilever Gantry Crane
 

crane, outdoor: an overhead or gantry crane that operates outdoors and for which provisions are not available for storage in an area that provides protection to the crane from weather conditions. An indoor crane that may operate outdoors on a periodic basis is not classified as an outdoor crane.

crane, overhead: a crane with a single or multiple girder movable bridge carrying a
movable or fixed hoisting mechanism and traveling on an overhead fixed runway
structure (see Fig. 3).

crane, polar: an overhead or gantry crane that travels on a circular runway.


Fig. 4 Semigantry Crane
 

crane, power-operated: a crane whose mechanism is driven by electric, pneumatic,
hydraulic, or internal combustion means.

crane, pulpit-operated: a crane whose movements are controlled by an operator through the use of controllers located in a control room or a fixed or movable cab or platform that is independent of the crane.

crane, remote-operated: a crane whose movements are controlled by an operator through the use of controllers contained in a portable operating station not attached to the crane.

crane, semigantry: a gantry with one end of the bridge rigidly supported on one or more legs that run on a fixed rail or runway, the other end of the bridge being supported by an end truck running on an elevated rail or runway (see Fig. 4).